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Byju's Answer
Standard XII
Chemistry
Hydrogen Bonding
In which case...
Question
In which case will the hydrogen bond not be observed?
A
H
3
O
−
2
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B
H
2
O
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C
H
5
O
+
2
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D
H
3
O
+
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Solution
The correct option is
D
H
3
O
+
In hydronium ion, a dative bond exists between
H
+
ion and
H
2
O
. Thus, it does not have hydrogen bonding.
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0
Similar questions
Q.
Which of the hydrated species may exist?
I :
H
5
O
+
2
II :
H
3
O
+
III :
H
5
O
−
2
IV :
H
7
O
+
3
Q.
Three reactions involving
H
2
P
O
−
4
are given below.
I.
H
3
P
O
4
+
H
2
O
→
H
3
O
+
+
H
2
P
O
−
4
II.
H
2
P
O
−
4
+
H
2
O
→
H
P
O
2
−
4
+
H
3
O
+
III.
H
2
P
O
−
4
+
O
H
−
→
H
3
P
O
4
+
O
2
−
In which of the above does
H
2
P
O
−
4
act as an acid?
Q.
Three reactions involving
H
2
P
O
−
4
are given below:
(i)
H
3
P
O
4
+
H
2
O
→
H
3
O
+
+
H
2
P
O
−
4
(ii)
H
2
P
O
−
4
+
H
2
O
→
H
P
O
2
−
4
+
H
3
O
+
(iii)
H
2
P
O
−
4
+
O
H
−
→
H
3
P
O
4
+
O
2
−
Q.
Bond order is associated with the strength of bond and bond length. The higher the bond order, the smaller will be the bond length and stronger will be the bond.
Arrange
O
2
,
O
+
2
,
O
−
2
and
O
2
−
2
in order of increasing bond order.
Q.
Hydrogen peroxide oxidises
[
F
e
(
C
N
)
6
]
4
−
to
[
F
e
(
C
N
)
6
]
3
−
in acidic medium but reduces
[
F
e
(
C
N
)
6
]
3
−
to
[
F
e
(
C
N
)
6
)
]
4
−
in alkaline medium. The other products formed, repectively are:
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